``Another unsettled question is whether banks are fully complying with the new servicing rules, which require changes such as an end to "dual tracking" -- foreclosing on a borrower who is in some stage of the modification process.

One indication that banks are still making mistakes comes from a recent report by a monitor appointed by California Attorney General Kamala Harris to oversee the settlement in that state. The monitor, Katherine Porter, recently reported that her office had heard complaints from homeowners about bank servicing practices as recently as September, though the number of complaints was trending downward.

Under the settlement, banks face fines of up to $1 million per occurrence should they fail to live up to the terms of the agreement. Based on the profits JPMorgan Chase reported today, the bank can afford to make a lot of mistakes. ''